2026-04-29T00:37:10Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/74172023-03-28T09:27:21Zcom_10259_3592com_10259_3591com_10259.4_106com_10259_2604com_10259_3843com_10259_4313com_10259_5086col_10259_3930col_10259_6162col_10259_4314
Rubio Aguinaga, Andrea
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600
Reglero Ruiz, José A.
468
600
0000-0002-7075-3206
Muñoz Santamaría, María Asunción
385
600
0000-0002-0063-3057
García García, Félix Clemente
201
600
0000-0002-1784-6884
García Calvo, José
198
600
0000-0002-1873-0293
Trigo López, Miriam
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600
0000-0001-5948-1230
2023-02-07T13:34:52Z
2023-02-07T13:34:52Z
2022-10
0021-8995
http://hdl.handle.net/10259/7417
10.1002/app.53192
1097-4628
Low-density porous aramid films using inexpensive and widely available polymers as porosity promoters, that is, polyvinyl alcohol (PVA), poly(2-ethyl-2-oxazoline) (PEOx), and cellulose polyacetate (CA) were fabricated. Porous poly (m-phenylene isophthalamide) films were obtained by the standard casting procedure using mixtures of the aramid with either PVA, PEOx, or CA, followed by the removal of the porosity promoter polymers by immersing them in water or acetone. As a result, films with up to a 65% density reduction with pore sizes ranging from 0.02 to 10 μm and up to 30% increment in Young's modulus were obtained. In addition, the morphology of the films was homogeneous and was controlled by the proportion and nature of the porosity promoter polymer. The density reduction of materials plays a significant role in energy crises and the need for fuel reduction. This study revealed that it is possible to prepare low-density porous aramid films inexpensively without impairing their outstanding performance by using PVA in the casting procedure as a porosity promoter polymer.
Regional Government of Castilla y León (Junta de Castilla y León), the Ministry of Science and Innovation MICIN and the European Union NextGenerationEU / PRTR, and the Spanish Agencia Estatal de Investigación (State Research Agency), Grant/Award Number: PID2019-108583RJ-I00/AEI/10.13039/501100011033
application/pdf
eng
Wiley
Journal of Applied Polymer Science. 2022, V. 139, n. 47, e53192
https://doi.org/10.1002/app.53192
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-108583RJ-I00/ES/POLIAMIDAS AROMATICAS MICRO Y NANOCELULARES REFORZADAS COMO MATERIALES DE ALTAS PRESTACIONES EN APLICACIONES DE SEGURIDAD, PROTECCION Y TRANSPORTE/
Atribución 4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
Films
Mechanical propert
Porous materials
Química
Chemistry
Preparation of low‐density high‐performance porous aramid films using porosity promoter polymers
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Journal of Applied Polymer Science
139
47
THUMBNAIL
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Rubio-japs_2022.pdf
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oai:riubu.ubu.es:10259/7417
2023-03-28 11:27:21.494
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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